127 



n<idy very black, somewhat j;lo.ssy,s])rink led wiili whitish (lc( umhctit 

 hairs. Head subtiansvcisc, hollowed out behind to ic< eive the ne<:k ; 

 face with a streak on each side the eyes ; feelers and stai)e of the antenna; 

 on the outside white; antennre slender, black, externally obscurely testa- 

 ceous, with a white annulet below the niiddh: : trunk < omi)rcssed ; margin 

 of the collar on each side, tegulae, and two transverse elevated streaks on 

 the scutcllum, white ; four anterior legs with the coxae and trochanters, 

 tip of the thigh and under side of the tibiae, white ; the thighs, except the 

 tip, testaceous ; upper side of the tibiae aud tarsi, and long posterior 

 legs, black ; wings hyaline with black nervures : abdomen sessile, with 

 the last segments dilated for the reception of the ovipositor ; the apical 

 margin of all the segments but the two first is interruptedly white ; but in 

 those segments the interruption is not perfect. 



[261.] KAMHA' HRACONID.I-;. 



361, Bracon crocator ATiVi^j. -Length of bodv without ovipositor 

 3 lines. A single specimen taken in T,at. 65^ 



Body very black, glossy. Head subglobose, with tlie segment of a 

 circle taken out behind ; eyes between oval and round : antennae as long 

 as the trunk ; trunk oblong, widest between the wings ; scutellum rather 

 large, rounded at the ape.x ; metathorax obsoletely transversely wrinkled, 

 sioi^ing towards the abdomen ; posterior legs rather robust ; wings 

 embrowned, middle areolets four, vi/.., 3 and i, all (luadrangular ; stigma 

 very large ; abdomen lanceolate-ovate, as long as the trunk, saffron 

 coloured, paler towards the a})ex ; tiie three hrst segmeuts are emarginate, 

 and marked with two longitudinal faint furrow.s. the fust pair being curvi- 

 linear ; ovipositor longer than the body, borer red. 



FAMILY FORMICID.i:. 



[262.] 362. Formica semipunctata A7/-^j' --Length of body 7^4 

 lines. Several taken in Journey from New York to Cumberland-house. 



Body black, glossy. Head something wider than the trunk, s'j^)- 

 triangular ; antennae piceous with the scape black : wings cast in all the 

 specimens ; scale vertical between the trunk and abdomen, sloping to a 

 thin edge upwaxds, where it is very slightly emarginate ; abdomen oblong, 

 subcylindrical, minutely punctured with the punctures piliforous ; hairs 

 decumbent with those of the margin of the segments and the anus, longer ; 



